Trivia: Despite looking quite fancy and expensive, the interior of the mausoleum was actually a fairly cheap set made primarily of plywood and marble-textured contact paper.
Trivia: Angus Scrim, who played the villainous "Tall Man," really was quite tall in real life, coming in at 6'4." However, the director had him wear platform shoes to make him even taller. As seen in the film, he's about 6'7", or a full ten inches taller than the average man.
Trivia: The film was inspired by a dream writer/director Don Coscarelli had, in which he was being chased down an endless corridor by a floating metallic ball with a needle sticking out of it.